19280820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1345

約数の個数: 96

約数和(自身を含む): 61246080

約数和(自身を除く): 41965260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1301, 1482, 2470, 2602, 2964, 3705, 3903, 4940, 5204, 6505, 7410, 7806, 13010, 14820, 15612, 16913, 19515, 24719, 26020, 33826, 39030, 49438, 50739, 67652, 74157, 78060, 84565, 98876, 101478, 123595, 148314, 169130, 202956, 247190, 253695, 296628, 321347, 338260, 370785, 494380, 507390, 642694, 741570, 964041, 1014780, 1285388, 1483140, 1606735, 1928082, 3213470, 3856164, 4820205, 6426940, 9640410, 19280820]

約数ペア:

[(1, 19280820), (2, 9640410), (3, 6426940), (4, 4820205), (5, 3856164), (6, 3213470), (10, 1928082), (12, 1606735), (13, 1483140), (15, 1285388), (19, 1014780), (20, 964041), (26, 741570), (30, 642694), (38, 507390), (39, 494380), (52, 370785), (57, 338260), (60, 321347), (65, 296628), (76, 253695), (78, 247190), (95, 202956), (114, 169130), (130, 148314), (156, 123595), (190, 101478), (195, 98876), (228, 84565), (247, 78060), (260, 74157), (285, 67652), (380, 50739), (390, 49438), (494, 39030), (570, 33826), (741, 26020), (780, 24719), (988, 19515), (1140, 16913), (1235, 15612), (1301, 14820), (1482, 13010), (2470, 7806), (2602, 7410), (2964, 6505), (3705, 5204), (3903, 4940)]